Home / 5,215,155.76-7,824,981.39-2,820,686.01

Finding the Fourth Proportional to 5,215,155.76, 7,824,981.39 and 2,820,686.01

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Solution

The fourth proportional to 5,215,155.76, 7,824,981.39 and 2,820,686.01 is: 4,232,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,155.76 : 7,824,981.39 = 2,820,686.01 : x
  2. Step 2: Convert to fraction form
    5,215,155.76/7,824,981.39 = 2,820,686.01/x
  3. Step 3: Cross multiply
    5,215,155.76x = 7,824,981.39 × 2,820,686.01
  4. Step 4: Simplify right side
    5,215,155.76x = 22,071,815,535,283.35
  5. Step 5: Solve for x
    x = 22,071,815,535,283.35/5,215,155.76
  6. Step 6: Final answer
    x = 4,232,244.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.